Available Fault Current on the Plans. Exercise 3.

Refer to the image to answer the question.
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Refer to the image to answer the question.

The image shows a fault current chart for a construction project that is supplied by a 120/240V, 1-phase, 3-wire, 400-amp electrical service. There are four electric panels supplied downstream of the SES (service entrance section). The one-line diagram is not shown.

Near the top of the image, the plan provides specific details on the conductor types and a load summary.

On the fault current chart, each panelboard has a fault point designation which is explained in detail. In the event that the electrician is unsure about what type of wiring method to install, the chart will provide additional details.

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Available Fault Current on the Plans. Exercise 3.

Below is a Real Question from our Electrical Continuing Education Courses for Electrical License Renewal:

Refer to the image:

Which of the following is true?

A: The AFC at the SES is 11,705 amps.
B: The conduit type specified for panel C is a ferrous metal (magnetic) raceway.
C: The conduit type specified for panel C is a plastic (non-magnetic) raceway.
D: The conduit type specified for panel B is a ferrous metal (magnetic) raceway.
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